2H 2015

Comparative Performance
OpenLB*
Cylinder2d
1 NODE
APPROVED FOR PUBLIC PRESENTATION
1
0
OpenLB* Speed Up
1 1X
1.53X
2S Intel® Xeon® processor E5-2697 v2, baseline OpenLB* (12 Ranks)
2S Intel Xeon processor E5-2697 v2, optimized OpenLB (12 Ranks)
2S Xeon E5-2697 v2 (12 Ranks) + Xeon Phi 7120A (12 Ranks * 20 thread per
Rank)
“Xeon E5-2697 v2” = Intel® Xeon® processor E5-2697 v2
“Xeon Phi 7120A” = Intel® Xeon Phi coprocessor 7120A
Application: OpenLB* 0.8r0. Workload is cylinder2d, which is
based on D2Q9 lattice mode and comes from the example in the
source code package; the size is 16384*4096.
Description: The OpenLB is a software package designed to set
up an open source implementation of Lattice Boltzmann
methods (LBM) in an object-oriented framework. More at
http://optilb.com/openlb/.
Availability:
• Code: Available here.
• Recipe: Available here.
Usage Model: Hybrid MPI + OpenMP* on Intel® Xeon Phi
coprocessor 7120A and MPI on Intel® Xeon® processor E5-2697
v2 using symmetric mode.
Highlights: Pure MPI mode shows the best performance on the
host processor. For the coprocessor, MPI + OMP hybrid mode
produces the best performance.
Results: The performance shows up to 1.53X speed up in
symmetric mode over the baseline Intel® Xeon® processor E5-
2697 v2.
For configuration details, go here.
SOURCE: INTEL MEASURED RESULTS AS OF OCTOBER, 2014
Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors. Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems,
components, software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully evaluating your contemplated
purchases, including the performance of that product when combined with other products. For more information go to http://www.intel.com/performance *Other names and brands may be claimed as the property of others
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